import java.util.Scanner;
public class EX3_4 {
	public static void main(String args[]) {
		int number = 0;
		System.out.println("输入正整数（回车确定)");
		Scanner reader = new Scanner(System.in);
		number = reader.nextInt();
		switch(number) {
			case 9 :
			case 131 :
			case 12 :
				System.out.println(number+"是三等奖");
				break;
			case 209 :
			case 596 :
			case 27 :
				System.out.println(number+"是二等奖");
				break;
			case 875 :
			case 316 :
			case 59 :
				System.out.println(number+"是一等奖");
				break;
			default : 
				System.out.println(number+"未中奖");
		}
	}
}
